AutoCodes – Generic – P18CB

P18CB Code - Parking Assist System Performance

Quick Answer

The Parking Assist Control Module communicates with the Engine Control Module (ECM) via serial data. Common causes include Faulty Parking Assist Control Module, Parking Assist Control Module harness is open or shorted, Parking Assist Control Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P18CB indicates Parking Assist System Performance.
Common causes: Common causes include Faulty Parking Assist Control Module, Parking Assist Control Module harness is open or shorted, Parking Assist Control Module circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,876

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 08, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P18CB Description

The Parking Assist Control Module communicates with the Engine Control Module (ECM) via serial data. The Diagnostic Trouble Code (DTC) will be set if the Engine Control Module an invalid data is received from Parking Assist Control Module

OBDII Code P18CB - Parking Assist System Performance - AutoCodes.com — P18CB Code - Parking Assist System Performance

What does this mean?

What are the Possible Causes of the DTC P18CB?

Faulty Parking Assist Control Module
Parking Assist Control Module harness is open or shorted
Parking Assist Control Module circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P18CB?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P18CB code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P18CB code?

Need more information on how to fix the P18CB code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P18CB code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P18CB Buick — Parking Assist System Performance
P18CB Cadillac — Parking Assist System Performance
P18CB Chevrolet — Parking Assist System Performance
P18CB GMC — Parking Assist System Performance

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P18CB Code

1. What are the common symptoms of OBDII code P18CB (Parking Assist System Performance)?

- Common symptoms include issues with the parking assist system functionality, such as inaccurate sensor readings or a complete failure of the system.

2. What are the possible causes of OBDII code P18CB?

- The code P18CB can be triggered by faulty parking assist sensors, wiring issues, damaged connectors, or problems with the control module.

3. How can I diagnose the cause of OBDII code P18CB?

- To diagnose the cause of code P18CB, you can use a diagnostic scanner to read the specific fault codes, visually inspect the parking assist sensors and wiring for any damage, and test the sensor outputs.

4. Is it safe to drive with OBDII code P18CB present?

- It is generally safe to drive with the P18CB code, but it is recommended to have the parking assist system inspected and repaired to ensure proper functionality.

5. How can I repair OBDII code P18CB?

- Repairing code P18CB may involve replacing faulty parking assist sensors, repairing damaged wiring or connectors, resetting the system, or reprogramming the control module.

6. Can I reset OBDII code P18CB without repairs?

- While you can clear the code temporarily, it is recommended to address the underlying issue causing the P18CB code to prevent it from reoccurring.

7. Are there any DIY tips for troubleshooting OBDII code P18CB?

- DIY troubleshooting tips include checking for loose or damaged wiring, ensuring the sensors are clean and unobstructed, and performing a visual inspection of the parking assist system components.

8. How much does it cost to fix OBDII code P18CB?

- The cost of fixing code P18CB can vary depending on the specific issue, but it may involve sensor replacement, wiring repairs, or control module reprogramming, which can range from relatively inexpensive to more costly.

9. Can extreme weather conditions trigger OBDII code P18CB?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can affect the performance of parking assist sensors and potentially trigger code P18CB.

10. Will fixing OBDII code P18CB improve my vehicle's overall safety?

- Yes, addressing and repairing code P18CB will help restore the proper functioning of the parking assist system, enhancing your vehicle's safety by providing accurate assistance during parking maneuvers.